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DragonFly bugs List (threaded) for 2003-11
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Re: Kernel Panic: bad isr 0

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Sat, 22 Nov 2003 16:30:42 -0800 (PST)

:panic: bad isr 0
:Stopped at      Debugger+0x34: movb     $0,in_Debugger.339
:Debugger trace reports: (as best as I can see by my craning my neck around 
:and reading from the monitor behind me)
:Debugger(c03c4d58,c0166ffb,c02b384d,c02eee78,c02e6a6c) at Debugger+0x34 
:dumpmag(73252228,a2922,0,0,0) at dumpmag+0x1b9
:Thanks in advance ;)

    hmm.  The backtrace isn't good.  There are three places where this
    panic can occur.  I just committed a change to net/netisr.c that
    does not fix the problem but does clarify which of those three 
    places is generating the panic.

    See if you can get a better trace by trying different stack pointers
    (starting the reported stack pointer and incrementing by 4, in hex),

    trace 0xblahblah	where 0xblahblah starts at the reported stack pointer

    Also be sure that you are not looking at a double fault.  Is the above
    panic the initial panic message or did it occur due to another earlier

					Matthew Dillon 

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